公开(公告)号：US20110047352A1

公开(公告)日：2011-02-24

申请号：US12545246

申请日：2009-08-21

申请人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

发明人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

IPC分类号： G06F15/76 ,  G06F9/02 ,  G06F12/08

CPC分类号： G06F12/0817

摘要： A data processing system includes at least a first through third processing nodes coupled by an interconnect fabric. The first processing node includes a master, a plurality of snoopers capable of participating in interconnect operations, and a node interface that receives a request of the master and transmits the request of the master to the second processing unit with a nodal scope of transmission limited to the second processing node. The second processing node includes a node interface having a directory. The node interface of the second processing node permits the request to proceed with the nodal scope of transmission if the directory does not indicate that a target memory block of the request is cached other than in the second processing node and prevents the request from succeeding if the directory indicates that the target memory block of the request is cached other than in the second processing node.

摘要翻译： 数据处理系统至少包括通过互连结构耦合的第一至第三处理节点。 第一处理节点包括主机，能够参与互连操作的多个侦听器，以及接收主机请求的节点接口，并将主机的请求传送到第二处理单元，传送范围限于 第二处理节点。 第二处理节点包括具有目录的节点接口。 第二处理节点的节点接口允许请求继续进行节点传输范围，如果该目录没有指示该请求的目标存储器块不是在第二处理节点中被缓存，并且如果该请求成功 目录指示除第二处理节点之外的请求的目标存储块被缓存。

公开(公告)号：US20100235577A1

公开(公告)日：2010-09-16

申请号：US12340511

申请日：2008-12-19

申请人： Guy L. Guthrie ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams

发明人： Guy L. Guthrie ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/126 ,  G06F12/0811 ,  G06F12/0862

摘要： A data processing system includes a plurality of processing units coupled by an interconnect fabric. In response to a data request, a victim cache line is selected for castout from a first lower level cache of a first processing unit, and a target lower level cache of one of the plurality of processing units is selected based upon architectural proximity of the target lower level cache to a home system memory to which the address of the victim cache line is assigned. The first processing unit issues on the interconnect fabric a lateral castout (LCO) command that identifies the victim cache line to be castout from the first lower level cache and indicates that the target lower level cache is an intended destination. In response to a coherence response indicating success of the LCO command, the victim cache line is removed from the first lower level cache and held in the second lower level cache.

摘要翻译： 数据处理系统包括通过互连结构耦合的多个处理单元。 响应于数据请求，从第一处理单元的第一较低级别高速缓存中选择牺牲缓存行来进行舍弃，并且基于目标的体系结构接近来选择多个处理单元之一的目标下级高速缓存 低级缓存到分配了受害者缓存行的地址的归属系统存储器。 所述第一处理单元在所述互连结构上发出侧向锁定（LCO）命令，所述侧向锁定（LCO）命令标识要从所述第一低级缓存中抛出的所述牺牲缓存线，并且指示所述目标低级缓存是预期目的地。 响应于指示LCO命令的成功的一致性响应，从第一低级缓存中删除受害者高速缓存行并保存在第二较低级高速缓存中。

公开(公告)号：US08489819B2

公开(公告)日：2013-07-16

申请号：US12340511

申请日：2008-12-19

申请人： Guy L. Guthrie ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams

发明人： Guy L. Guthrie ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F12/126 ,  G06F12/0811 ,  G06F12/0862

摘要： A data processing system includes a plurality of processing units coupled by an interconnect fabric. In response to a data request, a victim cache line is selected for castout from a first lower level cache of a first processing unit, and a target lower level cache of one of the plurality of processing units is selected based upon architectural proximity of the target lower level cache to a home system memory to which the address of the victim cache line is assigned. The first processing unit issues on the interconnect fabric a lateral castout (LCO) command that identifies the victim cache line to be castout from the first lower level cache and indicates that the target lower level cache is an intended destination. In response to a coherence response indicating success of the LCO command, the victim cache line is removed from the first lower level cache and held in the second lower level cache.

摘要翻译： 数据处理系统包括通过互连结构耦合的多个处理单元。 响应于数据请求，从第一处理单元的第一较低级别高速缓存中选择牺牲缓存行来进行舍弃，并且基于目标的体系结构接近来选择多个处理单元之一的目标下级高速缓存 低级缓存到分配了受害者缓存行的地址的归属系统存储器。 所述第一处理单元在所述互连结构上发出侧向锁定（LCO）命令，所述侧向锁定（LCO）命令标识要从所述第一低级缓存中抛出的所述牺牲缓存线，并且指示所述目标低级缓存是预期目的地。 响应于指示LCO命令的成功的一致性响应，从第一低级缓存中删除受害者高速缓存行并保存在第二较低级高速缓存中。

公开(公告)号：US20120203976A1

公开(公告)日：2012-08-09

申请号：US13445010

申请日：2012-04-12

申请人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

发明人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

IPC分类号： G06F12/08

CPC分类号： G06F12/0817

摘要： A data processing system includes at least a first through third processing nodes coupled by an interconnect fabric. The first processing node includes a master, a plurality of snoopers capable of participating in interconnect operations, and a node interface that receives a request of the master and transmits the request of the master to the second processing unit with a nodal scope of transmission limited to the second processing node. The second processing node includes a node interface having a directory. The node interface of the second processing node permits the request to proceed with the nodal scope of transmission if the directory does not indicate that a target memory block of the request is cached other than in the second processing node and prevents the request from succeeding if the directory indicates that the target memory block of the request is cached other than in the second processing node.

摘要翻译： 数据处理系统至少包括通过互连结构耦合的第一至第三处理节点。 第一处理节点包括主机，能够参与互连操作的多个侦听器，以及接收主机请求的节点接口，并将主机的请求传送到第二处理单元，传送范围限于 第二处理节点。 第二处理节点包括具有目录的节点接口。 第二处理节点的节点接口允许请求继续进行节点传输范围，如果该目录没有指示该请求的目标存储器块不是在第二处理节点中被缓存，并且如果该请求成功 目录指示除第二处理节点之外的请求的目标存储块被缓存。

公开(公告)号：US20100235576A1

公开(公告)日：2010-09-16

申请号：US12336048

申请日：2008-12-16

申请人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

发明人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/127 ,  G06F12/0811 ,  G06F12/0862

摘要： A victim cache memory includes a cache array, a cache directory of contents of the cache array, and a cache controller that controls operation of the victim cache memory. The cache controller, responsive to receiving a castout command identifying a victim cache line castout from another cache memory, causes the victim cache line to be held in the cache array. If the other cache memory is a higher level cache in the cache hierarchy of the processor core, the cache controller marks the victim cache line in the cache directory so that it is less likely to be evicted by a replacement policy of the victim cache, and otherwise, marks the victim cache line in the cache directory so that it is more likely to be evicted by the replacement policy of the victim cache.

摘要翻译： 受害者缓存存储器包括缓存阵列，高速缓存阵列的内容的高速缓存目录以及控制受害者缓存存储器的操作的高速缓存控制器。 高速缓存控制器响应于从另一高速缓冲存储器接收识别受害者高速缓存线路突发的丢弃命令，使受害者高速缓存行保持在高速缓存阵列中。 如果其他高速缓冲存储器是处理器核心的高速缓存层级中的较高级缓存，则高速缓存控制器将高速缓存目录中的受害者高速缓存行标记为不太可能被受害缓存的替换策略驱逐， 否则，将缓存目录中的受害者缓存行标记为更有可能被受害者缓存的替换策略驱逐。

公开(公告)号：US20100153647A1

公开(公告)日：2010-06-17

申请号：US12335975

申请日：2008-12-16

申请人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

发明人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

IPC分类号： G06F12/08

CPC分类号： G06F12/0811 ,  G06F12/0804 ,  G06F12/0831 ,  G06F12/0862

摘要： A data processing system includes a first processing unit and a second processing unit coupled by an interconnect fabric. The first processing unit has a first processor core and associated first upper and first lower level caches, and the second processing unit has a second processor core and associated second upper and lower level caches. In response to a data request, a victim cache line is selected for castout from the first lower level cache. The first processing unit issues on the interconnect fabric a lateral castout (LCO) command that identifies the victim cache line to be castout from the first lower level cache and indicates that a lower level cache is an intended destination. In response to a coherence response indicating success of the LCO command, the victim cache line is removed from the first lower level cache and held in the second lower level cache.

摘要翻译： 数据处理系统包括由互连结构耦合的第一处理单元和第二处理单元。 第一处理单元具有第一处理器核心和相关联的第一上部和第一下层高速缓存，并且第二处理单元具有第二处理器核心和相关联的第二上部和下部高速缓存。 响应于数据请求，选择受害者高速缓存行用于从第一较低级别缓存进行舍弃。 第一处理单元在互连结构上发出横向聚合（LCO）命令，该命令标识要从第一较低级缓存中抛出的受害缓存行，并且指示较低级缓存是预期目的地。 响应于指示LCO命令的成功的一致性响应，从第一低级缓存中删除受害者高速缓存行并保存在第二较低级高速缓存中。

公开(公告)号：US08504779B2

公开(公告)日：2013-08-06

申请号：US13445010

申请日：2012-04-12

申请人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

发明人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

IPC分类号： G06F13/00 ,  G06F13/28

CPC分类号： G06F12/0817

摘要： A data processing system includes at least a first through third processing nodes coupled by an interconnect fabric. The first processing node includes a master, a plurality of snoopers capable of participating in interconnect operations, and a node interface that receives a request of the master and transmits the request of the master to the second processing unit with a nodal scope of transmission limited to the second processing node. The second processing node includes a node interface having a directory. The node interface of the second processing node permits the request to proceed with the nodal scope of transmission if the directory does not indicate that a target memory block of the request is cached other than in the second processing node and prevents the request from succeeding if the directory indicates that the target memory block of the request is cached other than in the second processing node.

摘要翻译： 数据处理系统至少包括通过互连结构耦合的第一至第三处理节点。 第一处理节点包括主机，能够参与互连操作的多个侦听器，以及接收主机请求的节点接口，并将主机的请求传送到第二处理单元，传送范围限于 第二处理节点。 第二处理节点包括具有目录的节点接口。 第二处理节点的节点接口允许请求继续进行节点传输范围，如果该目录没有指示该请求的目标存储器块不是在第二处理节点中被缓存，并且如果该请求成功 目录指示除第二处理节点之外的请求的目标存储块被缓存。

公开(公告)号：US08499124B2

公开(公告)日：2013-07-30

申请号：US12336048

申请日：2008-12-16

申请人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

发明人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

IPC分类号： G06F12/00

CPC分类号： G06F12/127 ,  G06F12/0811 ,  G06F12/0862

摘要： A victim cache memory includes a cache array, a cache directory of contents of the cache array, and a cache controller that controls operation of the victim cache memory. The cache controller, responsive to receiving a castout command identifying a victim cache line castout from another cache memory, causes the victim cache line to be held in the cache array. If the other cache memory is a higher level cache in the cache hierarchy of the processor core, the cache controller marks the victim cache line in the cache directory so that it is less likely to be evicted by a replacement policy of the victim cache, and otherwise, marks the victim cache line in the cache directory so that it is more likely to be evicted by the replacement policy of the victim cache.

摘要翻译： 受害者缓存存储器包括缓存阵列，高速缓存阵列的内容的高速缓存目录以及控制受害者缓存存储器的操作的高速缓存控制器。 高速缓存控制器响应于从另一高速缓冲存储器接收识别受害者高速缓存线路突发的丢弃命令，使受害者高速缓存行保持在高速缓存阵列中。 如果其他高速缓冲存储器是处理器核心的高速缓存层级中的较高级缓存，则高速缓存控制器将高速缓存目录中的受害者高速缓存行标记为不太可能被受害缓存的替换策略驱逐， 否则，将缓存目录中的受害者缓存行标记为更有可能被受害者缓存的替换策略驱逐。

公开(公告)号：US08510512B2

公开(公告)日：2013-08-13

申请号：US12545246

申请日：2009-08-21

申请人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

发明人： Paul A. Ganfield ,  Guy L. Guthrie ,  David J. Krolak ,  Michael S. Siegel ,  William J. Starke ,  Jeffrey A. Stuecheli ,  Derek E. Williams

IPC分类号： G06F13/00 ,  G06F13/28

CPC分类号： G06F12/0817

摘要： A data processing system includes at least a first through third processing nodes coupled by an interconnect fabric. The first processing node includes a master, a plurality of snoopers capable of participating in interconnect operations, and a node interface that receives a request of the master and transmits the request of the master to the second processing unit with a nodal scope of transmission limited to the second processing node. The second processing node includes a node interface having a directory. The node interface of the second processing node permits the request to proceed with the nodal scope of transmission if the directory does not indicate that a target memory block of the request is cached other than in the second processing node and prevents the request from succeeding if the directory indicates that the target memory block of the request is cached other than in the second processing node.

公开(公告)号：US08225045B2

公开(公告)日：2012-07-17

申请号：US12335975

申请日：2008-12-16

申请人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

发明人： Guy L. Guthrie ,  Alvan W. Ng ,  Michael S. Siegel ,  William J. Starke ,  Derek E. Williams ,  Phillip G. Williams

IPC分类号： G06F12/00

CPC分类号： G06F12/0811 ,  G06F12/0804 ,  G06F12/0831 ,  G06F12/0862

摘要： A data processing system includes a first processing unit and a second processing unit coupled by an interconnect fabric. The first processing unit has a first processor core and associated first upper and first lower level caches, and the second processing unit has a second processor core and associated second upper and lower level caches. In response to a data request, a victim cache line is selected for castout from the first lower level cache. The first processing unit issues on the interconnect fabric a lateral castout (LCO) command that identifies the victim cache line to be castout from the first lower level cache and indicates that a lower level cache is an intended destination. In response to a coherence response indicating success of the LCO command, the victim cache line is removed from the first lower level cache and held in the second lower level cache.

摘要翻译： 数据处理系统包括由互连结构耦合的第一处理单元和第二处理单元。 第一处理单元具有第一处理器核心和相关联的第一上部和第一下层高速缓存，并且第二处理单元具有第二处理器核心和相关联的第二上部和下部高速缓存。 响应于数据请求，选择受害者高速缓存行用于从第一较低级别缓存进行舍弃。 第一处理单元在互连结构上发出横向聚合（LCO）命令，该命令标识要从第一较低级缓存中抛出的受害缓存行，并且指示较低级缓存是预期目的地。 响应于指示LCO命令的成功的一致性响应，从第一低级缓存中删除受害者高速缓存行并保存在第二较低级高速缓存中。